S2.1 The ionic model Quiz
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5 questions, one answer each
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1. What is the formula of magnesium hydroxide?
- A. MgOH
- B. Mg(OH)₂
- C. Mg₂OH
- D. MgOH₂
2. Which element forms a 3+ ion?
- A. Sodium
- B. Magnesium
- C. Aluminium
- D. Nitrogen
3. What is the name of Na₃N?
- A. Sodium nitrate
- B. Sodium nitrite
- C. Sodium nitride
- D. Trisodium nitrogen
4. Under which conditions does potassium bromide conduct electricity?
- A. Solid only
- B. Molten and aqueous only
- C. Solid and molten only
- D. In all states
5. Which compound is likely to have the highest melting point?
- A. NaF
- B. KCl
- C. CaO
- D. KBr